Electric regulation.



UNITED srATas PATENT OFFICE.

JOHN L. CREVELING, or NEW YORK, N. Y., nssrenoit T SAFETY can HEATING AND LIGHTIN CQIVIIANY, A CORPORATION "or NEW JERSEY.

nnno'rnro nne'ULA'rioN.

To all whom it may concem:

Be it known that I, JOHN CREVELING, a resident of New York, in the county and State ot'New York, have invented certa n new and useful Improvements in -ElBCtI.1C

Regulation, as set forth in the annexed specification and drawing forming a partthereof.

My invention pertains to that class of electric regulation wherein 1t 1s desired to automatically regulate a dynamo or generay tor in a predetermined manner, and has for its particular object to provide means whereby the same may be governed in accordance with the duties thereof.

Figure I of the drawing is a diagrammatio representation of one type of system of electrical distribution comprehending my invention. Fig. IIis a diagrammatic representation of a modified form of system comprehending my invention.

Referring to Fig. I of the drawlng, 1 represents a dynamo or generator provided with the usual field coil 2 having in series therewith the variable resistances 3 and 4, in this instance indicated as of the carbon pile variety for sake of simplicity merely. The variable resistance 3' is controlled by the lever 5 normally drawn in an upward direction as by the adjustable spring 6 tending to increase the pressure upon the pile 3 and reduce the resistance thereof. The

" lever 5 is provided with the ,core 7 of iron motion imparted to said core will govern or other. magnetic material, and it will be obvious that motion imparted to the said core will control the resistance 3. The resistance 4 is controlled by the lever 8 normally drawn in an upward direction by adjustable spring 9 tending to compact the carbon pile & and reduce its resistance. The lever 8 carries at its extremity the magnetic core 10, and thus it will-be; obvious that the resistance 4.

11 is a positive lead of the generator which. isconnected with the ositive side of the storage battery 12 and with the positive side of the lamps or other translating de vices 13 as through i the switch 14. The negative terminals of the translating de'-- vices are connected with the main l5hcarfried to one side Gf'the translation circuit regulating element 16 in this instance 1n- Specification of Letters Patent.

Patented Feb. 27, 1912.

Application filed June 21, 1911. Serial No. 634,493.

dicated, as a carbon pile rheostat for sake of -to increase the resistance 3, and the said coil 20 is connected in shunt across the lamp regulating resistance 16. The coil 21 surrounds the core 10 in such manner that excitation of the said coil tends to draw't-he core downwardly and increase the resist ance 4. The regulating element or resistance 16 is controlled as by lever 24 normally drawn in a downward direction as by the spring 25 tending to compact the carbon 16 and reduce the resistance thereof. The

lever 24 is provided with the core 26 surrounded by the solenoid 23, excitation ofv generator circuit employed in its stead.

The operation of my system is substantially as follows :-If the generator be, running and its voltage such that it will charge the storage battery, the main switch 18 will be closed and current will flow from the gen-' erator through the shunt 2 and resistances 3 and 4, and the generator may be governed by proper manipulation of the said resistances. Qurrent will also flow from the generator through the lead 11, storage battery 12, coil 21, lead 17, switch 18 and lead 19 to the generator, and I now so adjust the spring 9 that, when this current through the battery reaches a predetermined maximum,

further increase in current will be prevented lilting dcvices13, :and I now sfimng that the voltage :hy the action 0 made wi scope ofitniy iny'entlony'lnch is translation circuit,

by the coil Elfdrawing thelplunger 10 downwardly and in'crehslngresistance 4 in a well known manner. Q Current will also flow througlr the solenoid 23 and, ifthe switch 1- be closed, through the lamps orother trans- I across the translation circuit, will he held 'eonstant, at a value which the battery can maintain across the translation; circuit without assistance of the generator, by the coil 23 .increasingjhe resistance 16 throughout increases in voltagelacross the generator. As there will 'alwa y' be some current flowing in the translatioii' circuit either through the coil 23 or the translating devices or other means, there will be a drop across the resistance 16 which will increase upon increases of the said resisthn't t This drop will cause current to tlow throhgh the coil 20, and I St adjust the spring 6 that it the battery be charged to that point that its Voltage has risen to the value above which it is desired the same shall not he forced then the current through 20 duo.to the drop across 16 brought about i coil 23 will draw't-he core 7 downivardly ainst themction of spring 6 in such manner as to increase res stance 3 this v oltage throughout speed ch; s.

The op eratlon of 'the system siown in andpreifent the generator irom'excceding Figill may readily be understood from that aborle outlined with reference to Fig. I, the

only difference heing that C(Jll 22 will limit 8 l V V th'e generator output instead or the current to the hatteny only as described with reter- Cline to,F1g. l. I I, do not ash in any way to limit myself to the exact d L V of construction nor to the 'eXact mimic of operation contained in this specification and-"given to illustrate merely one type of em embodying the essentialsof my invention, for it willhe ohvious that wide departure therein may he thout departing item the spirit and :s set forth in the to lowing clanns: I

1: ilhe combination with a. generator, at

translation circuittand a regulator for the translation circuit of innans 'for regulating onsiye to current fluctua tions and'uncans *t'or regulating the genera;

the-gerterjathr r tor o )erated by thefdron in otential across q l i the translation cilrcuit regulator.

"lh e comhination with a generator, a translation circuit-and a regulator for the translation circuit, of means for regu ating the generolor current and means for regulating thtrgenerajgor voltage, regulating meansheing' operated in response to an effect produced by the translation circuit regulating means. F p 3. The ccmbii" .tion with a generating a translation circuit and a regulator for the so adjust the said i oltage of current resp'ot'isiye lation means for regulating the generator and means for regulating the enerator voltage,

regulator.

The combination with a generator, anda'translation circuit, of means for regulating the generator responsive to current fluctuations, a voltage operated regulator for regulating the translation circuit, a \oltagc regulator for the generator and means whereby the "cllcct of the translation circuit regulator operates the generator ,voltage regulator.

" '5. 'lhecomhination with a generator, and a translation circuit, of means for regulating the generator responsive to'current. fluctuations, regulating u'ieans for, the generator, automatic regulating means for the translation circuit and electric means whereby the translation circuit regulating means operates thc'last named generator regulating'ineans.

(3. The comhinatimi with a generator, :2 la'nslation circuit and a voltage operated regulator 'for the translation circuit of means for regulating the generator throughout speed changes in response tot-.urrent fluctuations, and means for regulating the generator throughout speed changes in response to voltage fluctuations comprehending electromagnetic means controlled by the operation of the, translation circuit regul ator.

7. The combination with a generator and a translation circuit, of means for regulat- .ing the generator responsive to current fluctuations, means for regulating the transcircuit, a voltage regulator for the generator and means whereby the translation circuit regulator operates said voltage regulator.

8. The combination with a generator and a translation circuit, of means for regulating the generator responsive to current fluctuations, means for regulating the translation circuit, a voltage regulator for the generator and means whereby operation of the ranslation circuit regulator operates the said .voltage regulator.

-9. The combination with a generator, :1

supply circuit and a translation circuit, of

means fora'egulating the generator responsive -to current fluctuations in the supply circuit, regulating means for the generator, regulating means for the translation circuit and means whereby the translation circuit regulating means operates the last named generator regulating means.

combination with a generator, a storage battery a-no a translation circuit, of means for regulating the generator to charge the battery upon a current controlled circuit, means'for regulating the translation circuit, means for regulating the gen-- erator and means whereby the said last named generator regulating means is operated by the translation circuit regulator.

11. The combination with a generator, a storage battery and a translation circuit, of means for regulating the generator to charge the battery upon a current controlled circuit, means for regulating the translation circuit, means for regulating the generator and electric means whereby the said last named generator regulating means is operated by the translation circuit regulator. 12. The combination with a generator, a supply circuit and a translation circuit, of aregulator for the generator, a coil for operating the same in the supply circuit, a

translation circuit regulator, a regulator for a the generator and means whereby the trans-- lation. circuit regulator operates the last named generator regulator.

13. The combinatioi with a generator, a supply circuit and a translation circuit, of a regulator for the generator, a coil for operating the same in the supply circuit, a translation circuit regulator, a regulator for the generator and means whereby the translation circuit regulator operates the last named generator regulator comprehending a coil allected by the operation of the trans lation circuit regulator.

14-. The combination with a generator having a field circuit, a supply circuit and a translation circuit, of a plurality of regulating means in the field circuit, means for operating one of said regulating means in response to current fluctuations in the supply circuit and means jvhereby the translation circuit regulator operates another of said regulating means.

15. The combination with a generator having a field circuit, a supply circuit and a translation circuit, of a plurality of resistances in the field circuit, means for opcrating one of said resistances comprising a coil in the supply circuit, a translation circuitregulator and means foroperating another of said resistances comprising a coil responsive to the operation of said translation circuit regulator.

16. The combination with a generator having a field circuit, a supply circuitand a translation circuit, of a plurality of resistances in the field circuit, means for operating one of said resistances comprising a coil in the supply circuit, a translation circuit regulator and means for operating another of said resistances comprising a coil across said translation circuit regulator.

JOHN L. CREVELING. lVitnesses 5.

ANNA MA IE WALL, CHAS. McC. CHAPMAN. 

